It gives itself away not to the eye on the ground but to the camera above, appearing as a cropmark in aerial and satellite imagery. Cropmarks form when buried features, ditches, banks, or foundations alter how overlying soil retains moisture, causing the grass or crops above them to grow at slightly different rates or in subtly different shades. The result, undetectable at field level, can be read clearly from altitude as a ghostly outline pressed into the landscape.

The circular shape is suggestive of any number of early features common to the Irish midlands, from ringforts, which were enclosed farmsteads typically dating from the early medieval period, to later enclosures of various kinds, though no firm identification has been made here. The diameter of approximately 58 metres, measured on a north to south axis, places it within a plausible range for a substantial ringfort or related enclosure. The land has been reclaimed as pasture, meaning whatever physical traces once existed above ground have long since been levelled or absorbed into agricultural use, leaving the buried archaeology as the only remaining record.